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Apo-Lorazepam: Uses, Side Effects and Dosage

Updated:
Facts
Status:
Prescription (Rx) TARGETED SUBSTANCES (CDSA IV)
Strength:
0.5 mg, 1 mg, 2 mg
Active ingredient:
ATC code:

Patient Medication Information: uses, side effects, how to take - Apo-Lorazepam

Serious Warnings and Precautions

Addiction, Abuse and Misuse:

Even if you take APO-LORAZEPAM exactly as you are told to, you are at risk for abuse, misuse and addiction, physical dependence and withdrawal. Abuse and misuse can result in overdose or death, especially if you take APO-LORAZEPAM with:

  • opioids
  • alcohol or
  • illicit drugs

Your healthcare professional should:

  • talk to you about the risks of treatment with APO-LORAZEPAM as well as other treatment (including non-drug) options
  • assess your risk for these behaviours before prescribing APO-LORAPAM
  • monitor you while you are taking APO-LORAZEPAM for the signs and symptoms of misuse and abuse. IF you feel like you are craving APO-LORAZEPAM, or not using it as directed, talk to your healthcare professional right away

Store APO-LORAZEPAM in a secure place to avoid theft or misuse.

Withdrawal:

If you suddenly stop taking APO-LORAZEPAM, lower your dose too fast, or switch to another medication, you can experience severe or life-threatening withdrawal symptoms (see Other warnings you should know about).

  • Always contact your healthcare professional before stopping or lowering your dose of APO-LORAZEPAM or changing your medicine

APO-LORAZEPAM with Opioids:

Taking APO-LORAZEPAM with opioid medicines can cause:

  • severe drowsiness
  • decreased awareness
  • breathing problems
  • coma
  • death

What is APO-LORAZEPAM used for?

APO-LORAZEPAM is used in adults for:

  • the short-term relief of severe anxiety symptoms in people with anxiety problems.
  • the relief of anxiety before surgery.

APO-LORAZEPAM is not recommended for mild to moderate anxiety and tension associated with the stresses of everyday life.

If you are 65 years or older, talk to your healthcare professional before starting APO-LORAZEPAM. APO-LORAZEPAM may not be an effective treatment for you and you may be more sensitive to experiencing side effects.

How does APO-LORAZEPAM work?

APO-LORAZEPAM is a benzodiazepine with sedative (calming) properties which help in the treatment of anxiety.

What are the ingredients in APO-LORAZEPAM?

Medicinal ingredients: Lorazepam.

Non-medicinal ingredients: Croscarmellose sodium, lactose monohydrate, magnesium stearate, and microcrystalline cellulose.

APO-LORAZEPAM comes in the following dosage forms:

Oral tablets: 0.5 mg, 1 mg and 2 mg

Do not use APO-LORAZEPAM if you:

  • are allergic to the group of medicines know as benzodiazepines (such as diazepam, clonazepam, chlordiazepoxide, bromazepam or flurazepam)
  • are allergic to lorazepam or any of the other ingredients in APO-LORAZEPAM (see What are the ingredients in APO-LORAZEPAM)
  • have myasthenia gravis (a chronic disease with muscle weakness)
  • have acute narrow angle glaucoma (a disease of the eye which causes progressive vision loss)

To help avoid side effects and ensure proper use, talk to your healthcare professional before you take APO-LORAZEPAM. Talk about any health conditions or problems you may have, including if you:

  • have ever had a problem with:

    • substance use, including prescribed or illegal drugs, or
    • alcohol
  • have ever had seizures or convulsions (violent uncontrollable shaking of the body with or without loss of consciousness)
  • have a lung disease or breathing problems (such as chronic obstructive pulmonary disease (COPD), sleep apnea syndrome)
  • You have a history of depression, suicide attempts or a mental health problem called psychosis
  • have liver problems
  • have kidney problems
  • are lactose intolerant or have one of the following rare hereditary diseases:

    • Galactose intolerance
    • Lapp lactase deficiency
    • Glucose-galactose malabsorption

Because lactose is a non-medicinal ingredient in APO-LORAZEPAM.

Other warnings you should know about:

Severe Allergic Reactions: Taking APO-LORAZEPAM can cause severe allergic reactions that can lead to death. For symptoms of severe allergic reactions, see the Serious side effects and what to do about them table (below).

Driving and Using Machines: APO-LORAZEPAM may affect your ability to be alert. Do NOT drive or operate machinery while you are taking APO-LORAZEPAM:

  • until you know how APO-LORAZEPAM affects you
  • for the first few days after you start or change dose
  • if you are taking an opioid or drink alcohol

Addiction, Abuse and Misuse: Taking APO-LORAZEPAM can lead to physical dependence, abuse and misuse, even if you take it as directed. See the Serious Warnings and Precautions box (above).

Behavioural Problems: Changes in thinking and behaviour may happen when you take APO-LORAZEPAM. This can include aggressiveness, extroversion, confusion, strange behaviour, restlessness, illusions, hallucinations, feeling like you are not yourself, worsening of insomnia or worsening of depression including suicidal thinking. If you develop any unusual or disturbing thoughts or behavior while taking APO-LORAZEPAM, talk to your healthcare professional immediately.

Pregnancy: Do not take APO-LORAZEPAM if you are pregnant. APO-LORAZEPAM may harm your unborn baby. It may also cause side effects and withdrawal symptoms in your baby after birth. Talk to your healthcare professional if you think you are pregnant or become pregnant while taking APO-LORAZEPAM.

Breastfeeding: Lorazepam passes into breast milk. You should not breastfeed while taking APO-LORAZEAPM. Talk to your healthcare professional about the best way to feed your baby while you are taking APO-LORAZEPAM.

Withdrawal: If you suddenly stop your treatment, lower your dose too fast, or switch to another medication, you can experience withdrawal symptoms that can range from mild symptoms to severe or life threatening. Some of your withdrawal symptoms can last for months after you stop APO-LORAZEPAM.

Your risk of going through withdrawal is higher if you are taking APO-LORAZEPAM for a long time or at high doses. However, symptoms can still occur if you are taking APO-LORAZEPAM as directed for a short period of time or slowly reducing the dose.

The symptoms of withdrawal often resemble the condition that you are being treated for. After stopping your treatment, it may be hard to tell if you are experiencing withdrawal or a return of your condition (relapse).

Tell your healthcare professional right away if you experience any symptoms of withdrawal after changing or stopping your treatment.

Severe symptoms of withdrawal include:

  • feeling like you cannot move or respond (catatonia)
  • severe confusion, shivering, irregular heart rate and excessive sweating (delirium tremens)
  • feeling depressed
  • feeling disconnected from reality (dissociation)
  • seeing or hearing things that are not there (hallucinations)
  • overactive behavior and thoughts (mania)
  • believing in things that are not true (psychosis)
  • convulsions (seizures), including some that do not stop
  • thoughts or actions of suicide

For other symptoms of withdrawal, see the Serious side effects and what to do about them table (below).

To reduce your chances of going through withdrawal:

  • always contact your healthcare professional before stopping or reducing your dose of APO-LORAZEPAM or changing medications
  • always follow your healthcare professional’s instructions on how to reduce your dose carefully and safely
  • tell your healthcare professional right away if you experience any unusual symptoms after changing or stopping your treatment

APO-LORAZEPAM with Opioids: Taking APO-LORAZEPAM with opioid medicines can cause severe drowsiness and breathing problems.

Tell your healthcare professional if you:

  • are taking opioid medicines
  • are prescribed an opioid medicine after you start taking APO-LORAZEPAM

Falls and Fractures: Benzodiazepines like APO-LORAZEPAM can cause you to feel sleepy, dizzy and affect your balance. This increases your risks of falling, which can cause fractures or other fall related-injuries, especially if you:

  • take other sedatives
  • drink alcohol
  • are elderly or
  • have a condition that causes weakness or frailty

Blood Tests: APO-LORAZEPAM can cause abnormal blood test results. Your healthcare professional will decide when to perform blood tests and will interpret the results.

Tell your healthcare professional about all the medicines you take, including any drugs, vitamins, minerals, natural supplements or alternative medicines.

Serious Drug Interactions

Taking APO-LORAZEPAM and opioids may cause:

  • severe drowsiness
  • trouble breathing
  • coma
  • death

The following may interact with APO-LORAZEPAM

  • medicines used to treat anxiety and insomnia
  • sedative/hypnotics (sleeping pills)
  • monoamine oxidase inhibitors (MAOIs) and other antidepressants
  • medicines used to treat mental health problems such as haloperidol, clozapine
  • narcotic analgesics (pain relievers, opioids), see Serious Warnings and Precautions box (above)
  • allergy medication
  • medicines used to prevent seizures such as valproate
  • anesthetics, used during surgery
  • probenecid, used to treat gout
  • medicines used to treat breathing problems such as theophylline, aminophylline

Do not take APO-LORAZEPAM if you drink alcohol.

How to take APO-LORAZEPAM:

  • Always take APO-LORAZEPAM exactly as your healthcare professional tells you to. Your healthcare professional will prescribe the dose that is right for you depending on your medical condition and how you respond to APO-LORAZEPAM.
  • Do not change your dose without talking to your healthcare professional.
  • Your healthcare professional will tell you when to stop taking APO-LORAZEPAM. Always follow your healthcare professional’s instructions on how to lower your dose carefully and safely to avoid experiencing withdrawal symptoms.

Usual adult dose:

Anxiety problems: 2 to 3 mg per day, in divided doses. Maximum: 6 mg per day.

Before surgery: Your healthcare professional will decide on the dose that is best for you based on your weight.

If you are 65 years of age or older you may be more sensitive to the effects of APO-LORAZEPAM. Your healthcare professional might prescribe you a lower dose.

Your doctor will slowly decrease your dose and will tell you when to stop taking the medicine. Always follow your doctor’s instructions on how to lower your dose carefully and safely to avoid experiencing withdrawal symptoms.

Overdose:

If you think you, or a person you are caring for, have taken too much APO-LORAZEPAM, contact a healthcare professional, hospital emergency department, or regional poison control centre immediately, even if there are no symptoms.

Missed Dose:

If you miss a dose of APO-LORAZEPAM, contact your healthcare professional for instructions.

What are possible side effects from using APO-LORAZEPAM?

These are not all the possible side effects you may have when taking APO-LORAZEPAM. If you experience any side effects not listed here, tell your healthcare professional.

Side effects may include:

  • drowsiness
  • dizziness
  • confusion
  • weakness and unsteadiness
  • falls and fractures
  • memory loss
Serious side effects and what to do about them
Symptom / effectTalk to your health care professionalStop taking drug and get immediate medical help
Only if severeIn all cases
UNCOMMON
Behavioural Problems: aggression, rage, sudden anxiety or excitation; restlessness, agitation, irritability; hallucinations (see or hear things that are not there) or delusions; severe sleep disturbances, nightmares, inappropriate behavior√
Severe Allergic Reactions: red skin, hives, itching, swelling of the lips, face, tongue, throat, trouble breathing, wheezing, shortness of breath, skin rashes, blisters of the skin, sores or pain in the mouth or eyes, nausea, vomiting√
Myasthenia Gravis: muscle weakness, drooping eyelid, vision changes, difficulty chewing and swallowing, trouble breathing√
Liver Problems: abdominal pain, nausea, vomiting, yellowing of skin and eyes, dark urine√
Serious side effects and what to do about them
Symptom / effectTalk to your health care professionalStop taking drug and get immediate medical help
Only if severeIn all cases
RARE
Depression: difficulty sleeping, changes in weight, feelings of worthlessness, guilt, regret, helplessness or hopelessness, withdrawal from social situations, family gatherings and activities with friends, reduced libido (sex drive), and thoughts of death or suicide√
UNKNOWN
Overdose: extreme sleepiness, confusion, slurred speech, slow reflexes, slow shallow breathing, coma, loss of balance and coordination, uncontrolled rolling of the eyes, low blood pressure√
Respiratory Depression: slow, shallow or weak breathing√

Withdrawal:

Severe symptoms include:

Catatonia: feeling like you cannot move or respond

Delirium Tremens: severe confusion, shivering, irregular

heart rate and excessive sweating

Feeling depressed

Dissociation: feeling disconnected from reality

Hallucinations: seeing or hearing things that are not there

Mania: overactive behaviour and thoughts

Psychosis: Believing in things that are not true

Convulsions: (seizures – including some that do not stop): loss of consciousness with uncontrollable shaking

Thoughts or actions of suicide

Other symptoms include: Stomach and muscle cramps; trouble remembering or concentrating; diarrhea; feeling uneasy or restless; severe anxiety or panic-attacks; headache; sensitivity to light, noise or physical

√
Serious side effects and what to do about them
Symptom / effectTalk to your health care professionalStop taking drug and get immediate medical help
Only if severeIn all cases
contact; shaking; vomiting; trouble sleeping; feeling irritable; muscle pain or stiffness; a burning or prickling feeling in the hands, arms, legs or feet; sweating

If you have a troublesome symptom or side effect that is not listed here or becomes bad enough to interfere with your daily activities, tell your healthcare professional.

Reporting Side Effects

You can report any suspected side effects associated with the use of health products to Health Canada by:

  • Visiting the Web page on Adverse Reaction Reporting (https://www.canada.ca/en/health-canada/services/drugs-health-products/medeffect-canada/adverse-reaction-reporting.html) for information on how to report online, by mail or by fax; or
  • Calling toll-free at 1-866-234-2345.

NOTE: Contact your health professional if you need information about how to manage your side effects. The Canada Vigilance Program does not provide medical advice.

Storage:

Store at room temperature 15°C to 30°C. Protect from moisture.

Keep out of reach and sight of children.

If you want more information about APO-LORAZEPAM:

  • Talk to your healthcare professional
  • Find the full product monograph that is prepared for healthcare professionals and includes this Patient Medication Information by visiting the Health Canada website: (https://www.canada.ca/en/health-canada/services/drugs-health-products/drug-products/drug-product-database.html); the manufacturer’s website (http://www.apotex.ca/products), or by calling 1-800-667-4708.

Last Revised: MAY 9, 2023

About this document

Source: Health Canada – Drug Product Database (DPD) and product monographs · DIN (Drug Identification Number): 00655740

Revision date stated in the text: May 9, 2023

Found a mistake? Write to us via the contact page.

The information on this site does not replace the advice of a doctor or pharmacist.

Drug information for Apo-Lorazepam

Rx or OTC
Prescription (Rx)?
DIN 00655740, 00655759, 00655767
Schedule(s) TARGETED SUBSTANCES (CDSA IV)
Active ingredient(s) Lorazepam
Dosage form(s) Tablet
Route(s) of administration Oral
Drug class (WHO ATC)
  1. N Nervous system drugs
    1. N05 Psycholeptics
      1. N05B Anxiolytics
        1. N05BA Benzodiazepine derivative anxiolytics
          1. N05BA06 Lorazepam
Company APOTEX INC
Current status Marketed
Current status date December 31, 1985
Strengths and forms
DIN Strength Dosage form(s) Current status
00655740 0.5 MG Tablet Marketed December 31, 1985
00655759 1 MG Tablet Marketed December 31, 1985
00655767 2 MG Tablet Marketed December 31, 1985

Source: Health Canada – Drug Product Database (DPD) and product monographs, data as of November 1, 2026. Data from the Health Canada Drug Product Database, as published there. Not a substitute for the advice of a doctor or pharmacist.